Condé Nast CEO Roger Lynch is leaving to run toy giant Mattel. Read his memo to staffers.

Theo Wargo/Getty Images Condé Nast CEO Roger Lynch is stepping down, according to a memo sent on Wednesday and viewed by Business Insider. Lynch told employees that he's leaving to run toy giant Mattel after more than seven years at Condé Nast, the publishing brand behind Vogue, Vanity Fair, and The New Yorker. Mike Perlis, who's currently the lead independent director, will be interim CEO of Condé Nast. Here is the full memo from Lynch: Dear all, I'm writing with bittersweet news. After seven and a half years as your CEO, I have made the very difficult decision to step down and help begin a leadership transition for the company. Soon, I'll be joining Mattel as their new CEO. When I joined Condé Nast, I had the simple ambition to leave this extraordinary place stronger than I found it.